CVE-2026-116472 (GCVE-0-2026-116472)
Vulnerability from cvelistv5 – Published: 2026-11-05 18:13 – Updated: 2026-11-05 22:05
VLAI
EPSS
VEX
Title
ingress-nginx mirror-target self-DOS
Summary
A security issue was discovered in ingress-nginx where a user with permission to create an Ingress may be able to cause denial of service of the ingress-nginx data plane, or possibly redirect traffic from other Ingresses. Kubernetes clusters are only affected if they are using ingress-nginx.
Due to a missing check, the mirror-target Ingress annotation can be used to target an unauthenticated configuration API within the ingress-nginx controller, allowing write commands to be submitted. Corrupting the data within that configuration API results in all traffic through ingress-nginx being dropped until an Ingress configuration change or a controller restart causes the data to be recreated correctly.
In principle, this write access could also be used to redirect traffic from other Ingresses controlled by the same ingress-nginx instance. In practice, there is negligible additional risk: such redirection would require privileged information about internal ingress-nginx state, and users can already redirect traffic from other Ingresses controlled by the same ingress-nginx anyway.
Severity
CWE
- CWE-20 - Improper input validation
Assigner
kubernetes
CNA
References
2 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Kubernetes | ingress-nginx |
Affected:
0 , < *
(semver)
|
|
| SUSE | Rancher Prime RKE2 ingress-nginx |
Affected:
0 , < 1.15.2-prime1
(custom)
|
Date Public
2026-11-05 17:49
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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